US20160198371A1 - Method and Apparatus for Transforming Carrier and System - Google Patents

Method and Apparatus for Transforming Carrier and System Download PDF

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Publication number
US20160198371A1
US20160198371A1 US15/068,780 US201615068780A US2016198371A1 US 20160198371 A1 US20160198371 A1 US 20160198371A1 US 201615068780 A US201615068780 A US 201615068780A US 2016198371 A1 US2016198371 A1 US 2016198371A1
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Prior art keywords
carrier
base station
cell
hybrid
subframes
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English (en)
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Lei Zhang
Yi Wang
Hua Zhou
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Fujitsu Ltd
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Fujitsu Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H04W72/042—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points

Definitions

  • the present disclosure relates to the field of communications, and in particular to a method and apparatus for transforming carrier and a system.
  • one solution is to use small cells to increase physical resource utilization. Furthermore, on a premise of identical covering areas, replacing one macro cell with multiple small cells may also efficiently save power overhead.
  • a small cell is a green technology saving more energies. And at the same time, a small cell facilitates flexible deployment, and may be flexibly opened and closed depending on an amount of users and an amount of traffic data.
  • NCT new carrier type
  • BCT backwards compatibility carrier type
  • the NCT may also be able to efficiently reduce inter-cell interference resulted from unnecessary cell-specific signals.
  • the NCT is more suitable in dense deployment scenarios.
  • use of the NCT in densely deployed small cells may efficiently increase an SINR (signal-to-interference plus noise ratio) of user equipment in receiving signals, thereby further increasing capacities of the cells.
  • SINR signal-to-interference plus noise ratio
  • user equipment UE, also referred to as terminal equipment or a terminal
  • LTE Release 12 LTE Release 12
  • An object of embodiments of the present disclosure is to provide a method and apparatus for transforming carrier and a system, so that advantages of the BCT and NCT are better used, and stable transition of serving the UE by the carriers may be achieved.
  • a method for transforming carrier including:
  • a method for transforming carrier including:
  • a method for transforming carrier including:
  • a method for transforming carrier including:
  • a method for transforming carrier including:
  • a method for transforming carrier including:
  • a base station including:
  • a transmitting unit configured to transmit a carrier transformation indication message to UE served by a cell corresponding to the base station, and indicate the UE via the carrier transformation indication message that a carrier type of the cell is to be changed;
  • a processing unit configured to transform a carrier type, and modify a content and/or a transmission mode of corresponding system information and a sequence and/or a transmission mode of a common signal.
  • UE including:
  • a handover unit configured to perform operations related to carrier transformation at a carrier transformation time point determined by the determining unit.
  • a base station including:
  • a handover unit configured to hand over all UEs which are served by a cell corresponding to the base station to carriers capable of providing services to the UEs;
  • a processing unit configured to transform a carrier type, and modify a content and/or a transmission mode of corresponding system information and a sequence and/or a transmission mode of a common signal.
  • a base station including:
  • a first scheduling unit configured to terminate scheduling UE in part of subframes of current carrier
  • a first processing unit configured to transform a carrier type of the part of subframes, and modify a content and/or a transmission mode of corresponding system information and a sequence and/or a transmission mode of a common signal
  • a first handover unit configured to hand over UEs served by current carrier and are able to support to a transformed carrier type to the transformed carrier;
  • a second processing unit configured to transform a carrier type of other subframes than the part of subframes of the current carrier into the transformed carrier.
  • a base station including:
  • a transmitting unit configured to transmit a handover command and handover assistant information to UE, so that the UE performs operations related to a carrier type designated by the base station according to the handover assistant information.
  • UE including:
  • a receiving unit configured to receive a handover command and handover assistant information transmitted by a base station
  • a transforming unit configured to perform operations related to a carrier type designated by the base station according to the handover assistant information.
  • a communication system including the base station as described in the seventh aspect and the UE as described in the eighth aspect, or including the base station as described in the ninth aspect and UE, or including the base station as described in the tenth aspect and UE, or including the base station as described in the eleventh aspect and the UE as described in the twelfth aspect.
  • a computer-readable program wherein when the program is executed in a base station, the program enables a computer to carry out the method for transforming carrier as described in any one of the first, the third, the fourth, the fifth, and the sixth aspects in the base station.
  • a storage medium in which a computer-readable program is stored, wherein the computer-readable program enables a computer to carry out the method for transforming carrier as described in any one of the first, the third, the fourth, the fifth, and the sixth aspects in a base station.
  • a computer-readable program wherein when the program is executed in terminal equipment, the program enables a computer to carry out the method for transforming carrier as described in the second or the seventh aspect in the terminal equipment.
  • a storage medium in which a computer-readable program is stored, wherein the computer-readable program enables a computer to carry out the method for transforming carrier as described in the second or the seventh aspect in terminal equipment.
  • An advantage of the embodiments of the present disclosure exists in that with the method and apparatus for transforming carrier and the system, advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • FIG. 1 is a flowchart of the method for transforming carrier of Embodiment 1 of the present disclosure
  • FIG. 2 is a flowchart of processing at a UE side corresponding to the method of FIG. 1 ;
  • FIG. 3 is a flowchart of the method for transforming carrier of Embodiment 3 of the present disclosure
  • FIG. 4 is a flowchart of processing of transition carrier corresponding to the method of FIG. 3 ;
  • FIG. 5 is a flowchart of processing at a UE side corresponding to the method of FIG. 4 ;
  • FIG. 6 is a flowchart of the method for transforming carrier of Embodiment 6 of the present disclosure
  • FIG. 7 is a flowchart of the method for transforming carrier of Embodiment 7 of the present disclosure.
  • FIG. 8 is a flowchart of processing at a UE side corresponding to the method of FIG. 7 ;
  • FIG. 9 is a schematic diagram of a structure of a base station corresponding to the method of FIG. 1 ;
  • FIG. 10 is a schematic diagram of a structure of UE corresponding to the method of FIG. 2 ;
  • FIG. 11 is a schematic diagram of a structure of a base station corresponding to the method of FIG. 3 ;
  • FIG. 12 is a schematic diagram of a structure of a base station corresponding to the method of FIG. 4 ;
  • FIG. 13 is a schematic diagram of a structure of UE corresponding to the method of FIG. 5 ;
  • FIG. 14 is a schematic diagram of a structure of a base station corresponding to the method of FIG. 6 ;
  • FIG. 15 is a schematic diagram of a structure of a base station corresponding to the method of FIG. 7 ;
  • FIG. 16 is a schematic diagram of a structure of UE corresponding to the method of FIG. 8 .
  • the small cells in the activated state may transform from the BCT carriers to the NCT carriers, so as to lower the inter-cell interference level and server for the users better.
  • all the small cells may transform to the NCT carriers at last. The number of the users will lower after reaching a peak along with the time, the number of the small cells in the activated state will become less and less, and the inter-cell interference in the area will also become less and less.
  • the small cells in the activated state may transform the carriers to the BCT carriers, so as to serve for more users.
  • user equipment of the following four types are concerned:
  • first type users supporting the BCT, not supporting the NCT and not supporting RRM (radio resource management) measurement performed based on a subframe pattern, such as users in LTE Rel. 8 and Rel. 9;
  • BCT backwards compatibility carrier type
  • NCT new carrier type
  • first type of hybrid carriers a part of subframes of which carrying BCT carriers, and the other part subframes carrying NCT carriers, operational bands of the BCT carriers and the NCT carriers carried by them overlapping each other, and the cell IDs of the BCT carriers and the NCT carriers being identical;
  • fourth type second type of hybrid carriers, a part of subframes of which carrying BCT carriers, and the other part subframes carrying NCT carriers, operational bands of the BCT carriers and the NCT carriers carried by them overlapping each other, and the cell IDs of the BCT carriers and that of the NCT carriers being different.
  • the subframes carrying the BCT carriers (abbreviated to as BCT subframes) contain broadcast information applicable to the BCT and common signals, such as common reference signals, and the subframes carrying the NCT carriers (abbreviated to as NCT subframes) contain broadcast information applicable to the NCT and common signals.
  • different secondary signals may also be carried by the BCT subframes and the NCT subframes, such that user equipment may search them according to respective secondary signals of the BCT subframes and the NCT subframes.
  • the broadcast information in the BCT subframes may indicate that this is a carrier of a hybrid type, the BCT and the NCT have identical cell ID and particular values of the cell ID, and may further carry a subframe pattern where the BCT operates, such as indicating in a form of a bitmap.
  • the information carried by the BCT subframes is placed in locations which are not read by legacy users (such the above-described first type of users and second type of users), that is, the information may only serve for users that are capable of identifying the carriers as hybrid carriers, and the information has no effect on use of the legacy users in the BCT carriers.
  • different secondary signals may also be carried by BCT subframes and NCT subframes, such that the user equipment may search them according to respective secondary signals of the BCT subframes and the NCT subframes.
  • the broadcast information in the NCT subframes may indicate that this is a NCT carrier of which not all subframes operate, cell ID of the NCT carriers, and may further carry a subframe pattern where the NCT operates, such as indicating in a form of a bitmap. Similarly, placement of the information in the NCT subframes should not affect use of the fourth type of users in the NCT carriers.
  • FIG. 1 is a flowchart of the method. Referring to FIG. 1 , the method includes:
  • step 101 transmitting a carrier transformation indication message by a base station of a cell to UE served by the cell, and indicating the UE via the carrier transformation indication message that a carrier type of the cell is to be changed;
  • step 102 transforming the carrier type, and modifying a content and/or a transmission mode of corresponding system information and a sequence and/or a transmission mode of a common signal, by the base station.
  • the carrier transformation indication message may be carried by RRC signaling; however, this embodiment is not limited thereto.
  • the base station may notify users in the cell via the RRC signaling that the carrier type of the cell is to be changed; for example, the carrier of the cell is to be transformed from a carrier type A into a carrier type B.
  • the RRC signaling may further carry some other corresponding information, for the users to identify and process.
  • the carrier transformation indication message may further carry new ID of the cell, i.e. the cell ID of the transformed carrier.
  • the base station and the user may agree a carrier transformation time in advance; that is, when the cell will change the cell ID and perform corresponding variation, for example, at a first subframe of a next frame after the UE receiving the carrier transformation indication message, thus the user may perform corresponding operations related to carrier transformation at a corresponding time point according to the agreed carrier transformation time.
  • the above carrier transformation time that is, when the carrying cell will change the cell ID and perform corresponding variation, such as delaying by several subframes, may be carried by the carrier transformation indication message.
  • the carrier transformation indication message may carry no cell ID, and may carry cell ID, and this embodiment is not limited thereto.
  • the carrier transformation indication message may further carry a subframe pattern of a subframe carrying a BCT and/or a subframe pattern of a subframe carrying a NCT, such that the base station schedules corresponding user in the subframe carrying the BCT or the subframe carrying the NCT.
  • the base station may transform the carrier type, such as modifying a content and/or a transmission mode of the system information and a sequence and/or a transmission mode of the common signal.
  • the carrier type such as modifying a content and/or a transmission mode of the system information and a sequence and/or a transmission mode of the common signal.
  • the base station needs to further terminate scheduling the UE in a subframe carrying a carrier not supporting access of UE. For example, in a case where transformation from the NCT to a hybrid carrier is performed, for the fourth type of users, as they support only the NCT, the base station needs to terminate scheduling this type of users in the subframe in the hybrid carrier carrying the BCT.
  • the transformed carrier is a hybrid carrier
  • cell IDs of two carriers in the hybrid carrier are identical (abbreviated to as hybrid carrier with identical cell ID) and the user supports all the carrier types in the hybrid carrier
  • the user may take the hybrid carrier as its serving cell, and the base station may schedule the user in any subframe in the hybrid carrier.
  • the transformed carrier is a hybrid carrier
  • cell IDs of two carriers in the hybrid carrier are different (abbreviated to as hybrid carrier with different cell IDs) and the user supports all carrier types in the hybrid carrier
  • the user may take either one of them as its serving cell, and may also take the two carriers as its serving cell.
  • the base station may schedule the user in a subframe where a carrier to which a serving cell of the user corresponds is located after determining the serving cell of the user.
  • the base station may schedule the user in subframes where carriers in the hybrid carrier are located in a time-division multiplexing manner.
  • the base station may first hand over users that cannot be served by the base station to a carrier that can provide services to the users according to the carrier type to be changed of the cell before transmitting the above carrier transformation indication message to the users of the cell.
  • a particular handover method is identical to that in an existing specification, which shall not be described herein any further.
  • transformation from the BCT to the NCT transformation from the NCT to the BCT, transformation from the BCT to the hybrid carrier, and transformation from the NCT to the hybrid carrier, may be achieved.
  • the base station may hand over the above first type of users and second type of users first, since both the first type of users and second type of users do not support the NCT, and then perform operations related to carrier transformation according to the method shown in FIG. 1 .
  • the base station transmits the carrier transformation indication message to the users in its cell (the users in its cell here is users that may continue to be served by the base station).
  • the base station may possibly transmit a synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in the new NCT carrier.
  • a synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the base station may likewise hand over the above first type of users and second type of users first, and then perform operations related to carrier transformation according to the method shown in FIG. 1 .
  • the base station transmits the carrier transformation indication message to the users in its cell, i.e. the users that may continue to be served by the base station, the carrier transformation indication message may contain cell ID of a new carrier.
  • the base station may possibly transmit a synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in consistence with the new cell ID in the new NCT carrier.
  • a synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the base station may likewise hand over the above fourth type of users first, and then perform operations related to carrier transformation according to the method shown in FIG. 1 .
  • the base station transmits the carrier transformation indication message to the users in its cell, i.e. the users that may continue to be served by the base station, the carrier transformation indication message may contain cell ID of a new carrier.
  • the base station may possibly transmit a synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in consistence with the new cell ID in the new BCT carrier.
  • a synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the base station may hand over the above first type of users first, since the first type of users do not support the NCT and are unable to perform RRM measurement on the BCT carrier in the subframe pattern manner, and then perform operations related to carrier transformation according to the method shown in FIG. 1 .
  • the base station transmits the carrier transformation indication message to the users in its cell, i.e. users that may continue to be served by the base station and to which the hybrid carrier is nontransparent.
  • the carrier transformation indication message may contain the subframe pattern of the subframe carrying the BCT and/or the subframe pattern of the subframe carrying the NCT.
  • the base station may possibly transmit a single synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in the new NCT carrier.
  • the NCT system information may indicate that this is a hybrid carrier.
  • the base station may further modify the BCT carrier system information, so that the BCT carrier system information may indicate that this is a hybrid carrier.
  • the nontransparency refers to that the users are aware that the transformed carrier is a hybrid carrier, similarly hereinafter.
  • the carrier transformation indication message may contain the subframe pattern of the subframe carrying the BCT and/or the subframe pattern of the subframe carrying the NCT.
  • the base station may possibly transmit a single synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in the new BCT carrier.
  • a single synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the base station may further modify the system information of the NCT carrier, so that the system information may indicate that this is a hybrid carrier.
  • the carrier transformation indication message may contain the subframe pattern of the subframe carrying the BCT and/or the subframe pattern of the subframe carrying the NCT. Furthermore, as the cell ID is changed, the carrier transformation indication message may further contain cell ID of the new NCT carrier and/or the cell ID of the new BCT carrier.
  • the base station may possibly transmit a single synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in the new BCT carrier. Alternatively, it may be indicated in the system information of the BCT carrier that this is a hybrid carrier. Alternatively, the base station may further modify the system information in the hybrid carrier, so that the system information may indicate that this is a hybrid carrier.
  • the base station may hand over the above fourth type of users first, since the fourth type of users do not support the BCT, and then perform operations related to carrier transformation according to the method shown in FIG. 1 .
  • the base station transmits the carrier transformation indication message to users that may continue to be served by the base station and to which the hybrid carrier is nontransparent.
  • the base station may modify the BCT system information, removing a part indicating a hybrid carrier.
  • the cell ID is changed.
  • the base station may hand over the above fourth type of users first, and then perform operations related to carrier transformation according to the method shown in FIG. 1 .
  • the base station transmits the carrier transformation indication message to users that may continue to be served by the base station and to which the hybrid carrier is nontransparent.
  • the base station may modify the BCT system information, removing a part indicating a hybrid carrier.
  • the cell ID is not changed.
  • the base station may hand over the above second type of users first, and then perform operations related to carrier transformation according to the method shown in FIG. 1 .
  • the base station transmits the carrier transformation indication message to users that may continue to be served by the base station and to which the hybrid carrier is nontransparent.
  • the base station may modify the NCT system information, removing a part indicating a hybrid carrier.
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • An embodiment of the present disclosure further provides a method for transforming carrier, which is processing at a UE side corresponding to the method of Embodiment 1.
  • FIG. 2 is a flowchart of the method. Referring to FIG. 2 , the method includes:
  • step 201 determining a carrier transformation time point by UE after receiving a carrier transformation indication message transmitted by a base station, according to a predefined rules or time indication information carried in the carrier transformation indication message;
  • step 202 performing operations related to carrier transformation by the UE at a determined carrier transformation time point.
  • the base station and the UE may agree a carrier transformation time point in advance, and time indication information may also be carried by the carrier transformation indication message, and the carrier transformation time point is indicated by the time indication information, thereby users may perform operations related to carrier transformation at the determined carrier transformation time point.
  • the UE may identify cell system information, receive a cell common signal and a downlink control signal, and update a scrambling sequence and a reference signal sequence related to the cell ID in an uplink signal of the UE, by using the cell ID contained in the carrier transformation indication message (the carrier transformation indication message contains cell ID of a new cell or cell ID of an original cell, the cell ID being changed or being not changed) or the original cell ID (the carrier transformation indication message contains no cell ID, the cell ID being not changed) at the carrier transformation time point, which shall not be described herein any further.
  • the carrier transformation indication message contains cell ID of a new cell or cell ID of an original cell, the cell ID being changed or being not changed
  • the original cell ID the carrier transformation indication message contains no cell ID, the cell ID being not changed
  • the UE may take the hybrid carrier as its serving cell, and in this case, the base station may schedule the UE in any subframe in the hybrid carrier.
  • the transformed carrier is a hybrid carrier, for UE unable to identify the hybrid carrier
  • a current carrier is a serving cell of the UE before it is transformed into a hybrid carrier
  • the UE directly takes the hybrid carrier as its serving cell, only if the base station avoids to schedule the UE in the subframe not supporting access of UE.
  • the serving cell of the UE may preconfigure that the UE measures carriers in the hybrid subframe supported by the UE in a subframe pattern manner, and then hand over UE satisfying conditions to the hybrid carrier according to a result of measurement, such that the UE takes the cell using the hybrid carrier as its serving cell, and in this case, a base station of a new cell avoids to schedule the UE in the subframe not supporting the access of UE.
  • the UE if the UE powers on in coverage of the cell using the hybrid carrier, the UE discovers and measures the cell in a manner of normal carrier, and the UE may successfully access to the cell if a result of measurement satisfies an access condition. And in this case, only if the base station of the cell avoids to schedule the UE in the subframe not supporting the access of UE.
  • resources available for transmitting PRACH preambles carried in system information of the carriers supported by the UE are all at subframes used for carrying the carriers.
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • step 301 handing over all UEs served by a cell to carriers capable of providing services to the UEs by a base station of the cell;
  • step 302 transforming the carrier type, and modifying a content and/or a transmission mode of corresponding system information and a sequence and/or a transmission mode of a common signal, by the base station.
  • carriers out of the current carrier that may provide services to the UEs served by the cell are taken as transition, and before the carrier type is transformed, all the UEs are handed over, and then the carrier type is transformed. Thereafter, base stations that may provide services to the UEs (that is, base stations to which the carriers providing services to the UEs correspond, which are abbreviated to as transition carriers, for the sake of convenience of description and understanding) hand over the UE back according to an actual situation. Processing of the base stations to which the transition carriers correspond shall be described in other embodiments.
  • the UEs that are handed over for carrier transformation and are handed over back to the transformed carrier after the carrier transformation may operate in the transformed carrier.
  • the base station terminates scheduling the UEs in a subframe carrying a carrier not supporting access of UE. For example, if the first type of users and second type of users do not support the NCT, the base station terminates scheduling the UEs in a subframe carrying the NCT after being transformed to the hybrid carrier. For another example, if the fourth type of users do not support the BCT, the base station terminates scheduling the UE in a subframe carrying the BCT after being transformed to the hybrid carrier.
  • the UEs may take the hybrid carrier as its serving cell, and the base station may schedule the UEs in any subframe in the hybrid carrier.
  • the UE may take one carrier in the hybrid carrier as its serving cell.
  • the base station determines the serving cell of the UEs, and schedules the UEs in a subframe where a carrier to which the serving cell of the UEs corresponds is located.
  • the UEs may also take these two carriers as its serving cell, and achieves dual connectivity with the two cells in a time-division multiplexing manner.
  • the base station may schedule the UEs in a time-division multiplexing manner in subframes where carriers in the hybrid carrier are located.
  • transformation from the BCT to the NCT transformation from the NCT to the BCT, transformation from the BCT to the hybrid carrier, and transformation from the NCT to the hybrid carrier, may be achieved.
  • the base station may transmit a synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in the new NCT carrier.
  • a synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the base station may transmit a synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in consistence with new cell ID in the new NCT carrier.
  • a synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the base station may transmit a synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in the new BCT carrier.
  • a synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the base station may transmit a synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in consistence with new cell ID in the new BCT carrier.
  • a synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the base station may transmit a single synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in the new NCT carrier.
  • a single synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the base station may further modify the system information of the BCT carrier, so that the system information may indicate that this is a hybrid carrier.
  • the base station may transmit a single synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in the new NCT carrier.
  • a single synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the base station may further modify the system information of the BCT carrier, so that the system information may indicate that this is a hybrid carrier.
  • the base station may transmit a single synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or system information in the new BCT carrier.
  • a single synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • system information in the new BCT carrier.
  • the base station may further modify the system information of the NCT carrier, so that the system information may indicate that this is a hybrid carrier.
  • the base station may transmit a single synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or system information in the new BCT carrier.
  • a single synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • system information in the new BCT carrier.
  • the base station may further modify the system information of the NCT carrier, so that the system information may indicate that this is a hybrid carrier.
  • the base station may modify the BCT system information, removing a part indicating a hybrid carrier.
  • the base station may modify the NCT system information, removing a part indicating a hybrid carrier.
  • the base station may modify the BCT system information, removing a part indicating a hybrid carrier.
  • the base station may modify the NCT system information, removing a part indicating a hybrid carrier.
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • An embodiment of the present disclosure further provides a method for transforming carrier, which is processing of transition carrier corresponding to the method of Embodiment 3.
  • FIG. 4 is a flowchart of the method. Referring to FIG. 4 , the method includes:
  • the measurement configuration message may be carried via RRC signaling, that is, the base station may configure the UE via the RRC signaling to measure the designated carrier;
  • the base station may configure the UE to measure the transformed carrier in Embodiment 2; wherein, the UE may be UE which is handed over from the base station of Embodiment 3 to the base station of this embodiment, and the UE supports the above transformed carrier; and the UE may also be UE in a cell determined by the base station of this embodiment according to a policy of its own, and this embodiment is not limited thereto;
  • step 402 determining whether to hand over the UE to the designated carrier by the base station according to a report of measurement performed by the UE on the designated carrier;
  • the base station of this embodiment may provide some assistant information needed by the handover to the UE (referred to as handover assistant information in this embodiment).
  • the handover assistant information may be contained in the above handover command and is carried by the above handover command, and may also be carried by other messages, and this embodiment is not limited thereto. Particular implementations of the assistant information shall be described in the following embodiments.
  • the base station may configure the UE via the above RRC signaling to measure the above transformed carrier by using a manner of NCT.
  • the base station may configure the UE via the above RRC signaling to measure the above transformed carrier by using a manner of BCT.
  • the base station may configure the UE with a subframe pattern of a subframe carrying the BCT, so that the UE uses the subframe pattern to measure the above transformed carrier in the manner of BCT; and/or the base station may also configure the UE with a subframe pattern of a subframe carrying the NCT, so that the UE uses the subframe pattern to measure the above transformed carrier in the manner of NCT.
  • the base station may configure the UE via the above RRC signaling to measure the transformed carrier in the manner of BCT.
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • An embodiment of the present disclosure further provides a method for transforming carrier, which is processing at a UE side corresponding to the method of Embodiment 4.
  • FIG. 5 is a flowchart of the method. Referring to FIG. 5 , the method includes:
  • step 501 receiving by UE measurement configuration information transmitted by a base station, and measuring by UE a designated carrier according to the measurement configuration information;
  • the measurement configuration information may be carried via RRC signaling, which is as described in Embodiment 4, and shall not be described herein any further;
  • the UE will feed back a report of measurement to the base station, and the base station will determine whether to hand over the UE to the above designated carrier accordingly;
  • step 502 handing over to the designated carrier by the UE according to handover assistant information after receiving a handover command and the handover assistant information transmitted by the base station;
  • the base station determines to hand over the UE to the above designated carrier, it transmits the handover command to the UE of this embodiment; and in order speed up a handover process, the handover assistant information may be carried by the handover command, and may also be carried by other messages; thus, the UE may use the handover assistant information to hand over to the carrier designated by the base station, thereby speeding up the handover process;
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • FIG. 6 is a flowchart of the method. Referring to FIG. 6 , the method includes:
  • step 601 terminating scheduling UE in part of subframes of a current carrier by a base station
  • step 602 transforming a carrier type of the part of subframes, and modifying a content and/or a transmission mode of corresponding system information and a sequence and/or a transmission mode of a common signal, by the base station;
  • step 603 handing over UEs served by current carrier and are able to support the transformed carrier type to the transformed carrier;
  • step 604 transforming a carrier type of other subframes than the part of subframes of the current carrier by the base station into the transformed carrier.
  • hybrid carrier is taken as a transition state, so as to avoid influence on other cells, and handover of the UE from an old carrier to a new carrier is achieved in the cell.
  • the base station may first hand over UEs to which the base station is unable to provide services to a carrier which is able to provide services to the UEs according to the carrier type of the cell that is to be changed.
  • An existing specification may be referred to for a particular method of handover, which shall not be described herein any further.
  • an object of terminating scheduling UE in part of subframes of a current carrier is to first perform operations related to carrier transformation on this part of subframes.
  • the base station may transmit configuration information containing subframe patterns of the other subframes than the part of subframes by the base station to the UE, so that the UE performs the RRM measurement in a manner of subframe pattern according to the subframe pattern.
  • the configuration information may be achieved via RRC signaling.
  • Embodiment 1 may be referred to for the modification of the system information and the common signal, which shall not be described herein any further.
  • the base station may first configure the UE via the RRC signaling to measure the transformed carrier in the manner of subframe pattern, such as transmitting carrier measurement configuration information to the UE in the cell, indicating the UE to measure the transformed carrier, and then determine according to a result of measurement performed by the UE on the transformed carrier whether to hand over the UE to the above transformed carrier.
  • the base station hands over UE in the cell that is unable to change its serving cell from the current carrier to carriers that is able to provide services to it, and hands over UE served by current carrier and are able to support the transformed carrier type to the transformed carrier.
  • the base station may also transmit the handover assistant information to the UE, so that the UE changes its serving cell from the current carrier to the transformed carrier according to the handover assistant information.
  • the handover of the UE may be calculated.
  • an implementation of the handover assistant information shall be described in the following embodiments.
  • the base station may transmit configuration information containing subframe patterns of subframes of the transformed carrier to the UE, so that the UE operates in a manner of subframe pattern according to the subframe pattern (for example, the UE only monitors a physical downlink control channel (PDCCH) in a subframe carrying a carrier to which it accesses; or if no enhanced physical downlink control channel (ePDCCH)) is separately configured, the UE only monitors the ePDCCH in the subframe carrying the carrier to which it accesses).
  • PDCH physical downlink control channel
  • ePDCCH enhanced physical downlink control channel
  • the configuration information may be carried by a message in the handover process, such as being carried in configuration handover information or a message 2 in a random access process, and this embodiment is not limited thereto.
  • the UE of higher releases may operate in the transformed carrier.
  • the base station may schedule the UE in this part of the subframes. For example, the base station may transmit the configuration information containing the subframe pattern of the subframe carrying the transformed carrier to the UE, so that the UE operates in a manner of subframe pattern according to the subframe pattern.
  • the base station may schedule the UE in all the subframes. And in this case, the base station may transmit a notification message to the UE in the cell, notifying the UE that it is possibly scheduled in any subframe.
  • the base station may terminate its operations in the manner of subframe pattern.
  • the transformation from the BCT to the NCT (with the cell ID being changed) and the transformation from the NCT to the BCT (with the cell ID being changed) may be achieved.
  • the base station may first hand over the first type of users and the second type of users, since both the first type of users and second type of users do not support the NCT. Then, corresponding to step 602 , the base station may transmit a synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in consistence with new cell ID in the new NCT carrier.
  • a synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the base station may first hand over the fourth type of users, since the fourth type of users do not support the BCT. Then, corresponding to step 602 , the base station may transmit a synchronization signal (such as a PSS/SSS) and/or a cell-specific signal (such as a cell-specific pilot signal) and/or corresponding system information in consistence with new cell ID in the new BCT carrier.
  • a synchronization signal such as a PSS/SSS
  • a cell-specific signal such as a cell-specific pilot signal
  • the processing at the UE side corresponding to the processing at the base station side may be achieved by using the method of Embodiment 5, which shall not be described herein any further.
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • FIG. 7 is a flowchart of the method. Referring to FIG. 7 , the method includes:
  • step 701 transmitting a handover command and handover assistant information by a base station to UE, so that the UE performs operations related to a carrier type designated by the base station according to the handover assistant information.
  • the base station when the base station determines to hand over the UE to other cells to which carriers supported by the UE correspond, such as the scenario in Embodiment 4 or the scenario in Embodiment 6, the base station speeds up the handover of the UE by transmitting some handover assistant information to the UE.
  • the UE may be indicated via the above information on downlink synchronization that downlink timing of the transformed carrier is identical to that of the current carrier (a carrier before transformation), so as to speed up the handover of the UE; for example, the assistant information may enable the UE to quickly position a synchronization signal.
  • the UE may be indicated via the above information on uplink random access that timing advance (TA) of the carrier before transformation, and a cell ratio network temporary identifier (C-RNTI) used in the carrier before transformation may still be used in the transformed carrier.
  • TA timing advance
  • C-RNTI cell ratio network temporary identifier
  • the process of handover of the UE to the new carrier is sped up.
  • An embodiment of the present disclosure further provides a method for transforming carrier, which is processing at a UE side corresponding to the method of Embodiment 7.
  • the method includes:
  • step 801 receiving by UE a handover command and handover assistant information transmitted by a base station;
  • step 802 performing operations related to a carrier type designated by the base station by the UE according to the handover assistant information.
  • the process of handover of the UE to the new carrier is sped up.
  • An embodiment of the present disclosure further provides a base station, as described in Embodiment 9 below.
  • a base station as described in Embodiment 9 below.
  • the implementation of the method of Embodiment 1 may be referred to for particular implementation of the base station, with identical contents being not going to be described herein any further.
  • FIG. 9 is a schematic diagram of a structure of the base station.
  • the base station includes:
  • a transmitting unit 91 configured to transmit a carrier transformation indication message to UE served by a cell corresponding to the base station, and indicate the UE via the carrier transformation indication message that a carrier type of the cell is to be changed;
  • a processing unit 92 configured to transform a carrier type, and modify a content and/or a transmission mode of corresponding system information and a sequence and/or a transmission mode of a common signal.
  • the base station further includes:
  • a handover unit 93 configured to hand over UE unable to be served to carriers able to provide services to the UE according to the carrier type of the cell to be changed before the transmitting unit 91 transmits the carrier transformation indication message to the UE.
  • the base station further includes:
  • a first scheduling unit 94 configured to terminate scheduling the UE in a subframe carrying a carrier not supporting UE access when the transformed carrier is a hybrid carrier.
  • the base station further includes:
  • a second scheduling unit 95 configured to terminate scheduling the UE in a subframe carrying a carrier not supporting UE access when the transformed carrier is a hybrid carrier and the UE supports only one carrier type in the hybrid carrier.
  • the base station further includes:
  • a third scheduling unit 96 configured to schedule the UE in any subframe in a hybrid carrier if the transformed carrier is a hybrid carrier with identical cell ID and the UE supports all carrier types in the hybrid carrier.
  • the base station further includes:
  • a fourth scheduling unit 97 configured to determine a serving cell of the UE, and schedule the UE in subframes where a carrier to which the serving cell of the UE corresponds is carried, or schedule the UE in subframes where carriers of different carrier types in the hybrid carrier are carried in a time-division multiplexing manner, if the transformed carrier is a hybrid carrier with more than one cell ID and the UE supports all carrier types in the hybrid carrier.
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • An embodiment of the present disclosure further provides UE, as described in Embodiment 10 below.
  • the implementation of the method of Embodiment 2 may be referred to for particular implementation of the UE, with identical contents being not going to be described herein any further.
  • FIG. 10 is a schematic diagram of a structure of the UE.
  • the UE includes:
  • a determining unit 1001 configured to determine a carrier transformation time point after receiving a carrier transformation indication message transmitted by a base station, according to a predefined rules or time indication information carried in the carrier transformation indication message;
  • a handover unit 1002 configured to perform operations related to carrier transformation at a carrier transformation time point determined by the determining unit.
  • the handover unit identifies system information, receives a cell specific common signal and a downlink control signal and updates a scrambling sequence and a reference signal sequence related to the cell ID in an uplink signal of the UE, by using the cell ID of the transformed carrier at the carrier transformation time point.
  • the UE further includes:
  • a first selecting unit 1003 configured to take a hybrid carrier as its serving cell if the transformed carrier is a hybrid carrier with an identical cell ID and the UE supports all carrier types in the hybrid carrier.
  • the UE further includes:
  • a second selecting unit 1004 configured to take a hybrid carrier as its serving cell, or take one carrier in the hybrid carrier as its serving cell, if the transformed carrier is a hybrid carrier with more than one cell ID and the UE supports all carrier types in the hybrid carrier.
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • An embodiment of the present disclosure further provides a base station, as described in Embodiment 11 below.
  • a base station as described in Embodiment 11 below.
  • the implementation of the method of Embodiment 3 may be referred to for particular implementation of the base station, with identical contents being not going to be described herein any further.
  • FIG. 11 is a schematic diagram of a structure of the base station.
  • the base station includes:
  • a handover unit 1101 configured to hand over all UEs which are served by a cell corresponding to the base station to carriers capable of providing services to the UE;
  • a processing unit 1102 configured to transform a carrier type, and modify a content and/or a transmission mode of corresponding system information and a sequence and/or a transmission mode of a common signal.
  • the base station further includes:
  • a first scheduling unit 1103 configured to terminate scheduling the UE in a subframe carrying a carrier not supporting UE access when the transformed carrier is a hybrid carrier and the UE changing its serving cell from the current carrier to the transformed carrier supports only one carrier type in the hybrid carrier.
  • the base station further includes:
  • a second scheduling unit 1104 configured to schedule the UE in any subframe in a hybrid carrier if the transformed carrier is a hybrid carrier with identical cell ID and the UE supports all carrier types in the hybrid carrier.
  • the base station further includes:
  • a third scheduling unit 1105 configured to determine a serving cell of the UE, and schedule the UE in subframes where a carrier to which the serving cell of the UE corresponds is carried, or schedule the UE in subframes where carriers of different carrier types in a hybrid carrier are carried in a time-division multiplexing manner, if the transformed carrier is the hybrid carrier with more than one cell ID and the UE supports all carrier types in the hybrid carrier.
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • An embodiment of the present disclosure further provides a base station, as described in Embodiment 12 below.
  • a base station as described in Embodiment 12 below.
  • the implementation of the method of Embodiment 4 may be referred to for particular implementation of the base station, with identical contents being not going to be described herein any further.
  • FIG. 12 is a schematic diagram of a structure of the base station.
  • the base station includes:
  • a first transmitting unit 1201 configured to transmit a measurement configuration message to UE, indicating the UE to measure a designated carrier
  • a judging unit 1202 configured to determine whether to hand over the UE to the designated carrier according to a report of measurement performed by the UE on the designated carrier;
  • a second transmitting unit 1203 configured to transmit handover assistant information to the UE when the judging unit 1202 determines to hand over the UE to the designated carrier, so as to hand over the UE to the designated carrier.
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • An embodiment of the present disclosure further provides UE, as described in Embodiment 13 below.
  • the implementation of the method of Embodiment 5 may be referred to for particular implementation of the UE, with identical contents being not going to be described herein any further.
  • FIG. 13 is a schematic diagram of a structure of the UE.
  • the UE includes:
  • a measuring unit 1301 configured to measure a carrier designated by a base station according to received measurement configuration information transmitted by the base station;
  • a handover unit 1302 configured to hand over to the designated carrier according to handover assistant information after receiving a handover command and the handover assistant information transmitted by the base station.
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • An embodiment of the present disclosure further provides a base station, as described in Embodiment 14 below.
  • a base station as described in Embodiment 14 below.
  • the implementation of the method of Embodiment 6 may be referred to for particular implementation of the base station, with identical contents being not going to be described herein any further.
  • FIG. 14 is a schematic diagram of a structure of the base station.
  • the base station includes:
  • a first scheduling unit 1401 configured to terminate scheduling UE in part of subframes of current carrier
  • a first processing unit 1402 configured to transform a carrier type of the part of subframes, and modify a content and/or a transmission mode of corresponding system information and a sequence and/or a transmission mode of a common signal;
  • a first handover unit 1403 configured to hand over UEs served by current carrier and are able to support to a transformed carrier type to the transformed carrier;
  • a second processing unit 1404 configured to transform a carrier type of other subframes than the part of subframes of the current carrier into the transformed carrier.
  • the base station further includes:
  • a second handover unit 1405 configured to hand over UEs unable to be served to carriers able to provide services to the UE according to a carrier type of the cell to be changed before the first scheduling unit 1401 terminates scheduling UE in part of subframes of the current carrier.
  • the first scheduling unit 1401 includes:
  • a first transmitting module 14011 configured to transmit configuration information containing subframe pattern of the other subframes than the part of subframes to the UE, so that the UE operates in a manner of subframe pattern according to the subframe pattern.
  • the base station further includes:
  • a first transmitting unit 1406 configured to, before the first handover unit hands over UEs served by current carrier and are able to support to a transformed carrier type to the transformed carrier, transmit measurement configuration information to the UE of the cell, indicating the UE to measure the transformed carrier;
  • a judging unit 1407 configured to determine whether to hand over the UE to the transformed carrier according to a report of measurement performed by the UE on the transformed carrier
  • a third handover unit 1408 configured to hand over UE of the cell that is unable to change its serving cell from the current carrier to the transformed carrier to carriers able to provide services to the UE.
  • the first handover unit 1403 includes:
  • a second transmitting module 14031 configured to transmit handover assistant information to the UE, so that the UE changes its serving cell from the current carrier to the transformed carrier according to the handover assistant information.
  • the first handover unit 1403 includes:
  • a third transmitting module 14032 configured to transmit configuration information containing subframe pattern of subframes carrying the transformed carrier to the UE, so that the UE operates in a manner of subframe pattern according to the subframe pattern.
  • the base station further includes:
  • a second scheduling unit 1409 configured to schedule the UE in the part of subframes after the first processing unit 1402 transforms carrier type of the part of subframes.
  • the second scheduling unit 1409 includes:
  • a fourth transmitting module 14091 configured to transmit configuration information containing subframe pattern of subframes carrying the transformed carriers to the UE, so that the UE operates in a manner of subframe pattern according to the subframe pattern.
  • the base station further includes:
  • a third scheduling unit 1410 configured to schedule the UE in all subframes after the second processing unit 1404 transforms the carrier type of other subframes into the transformed carrier.
  • the base station further includes:
  • a second transmitting unit 1411 configured to transmit a notification message to UE of the cell, notifying the UE that it is possibly scheduled in any subframe.
  • advantages of the BCT and NCT may be better used, and stable transition of serving the UE by the carriers may be achieved.
  • An embodiment of the present disclosure further provides a base station, as described in Embodiment 15 below.
  • a base station as described in Embodiment 15 below.
  • the implementation of the method of Embodiment 7 may be referred to for particular implementation of the base station, with identical contents being not going to be described herein any further.
  • FIG. 15 is a schematic diagram of a structure of the base station.
  • the base station includes:
  • a transmitting unit 1501 configured to transmit a handover command and handover assistant information to UE, so that the UE performs operations related to a carrier type designated by the base station according to the handover assistant information.
  • the handover assistant information includes:
  • handover of the UE may be sped up.
  • An embodiment of the present disclosure further provides UE, as described in Embodiment 16 below.
  • the implementation of the method of Embodiment 8 may be referred to for particular implementation of the UE, with identical contents being not going to be described herein any further.
  • FIG. 16 is a schematic diagram of a structure of the UE.
  • the UE includes:
  • a receiving unit 1601 configured to receive a handover command and handover assistant information transmitted by a base station
  • a transforming unit 1602 configured to perform operations related to a carrier type designated by the base station according to the handover assistant information.
  • handover may be sped up.
  • An embodiment of the present disclosure further provides a communication system, including the base station as described in Embodiment 9 and the UE as described in Embodiment 10, or including the base station as described in embodiments 11 and 12 and the UE as described in Embodiment 13, or including the base station as described in Embodiment 14 and the UE as described in Embodiment 13, or including the base station as described in Embodiment 15 and the UE as described in Embodiment 16.
  • An embodiment of the present disclosure further provides a computer-readable program, wherein when the program is executed in a base station, the program enables a computer to carry out the method for transforming carrier as described in embodiments 1, 3, 4, 6 or 7 in the base station.
  • An embodiment of the present disclosure further provides a storage medium in which a computer-readable program is stored, wherein the computer-readable program enables a computer to carry out the method for transforming carrier as described in embodiments 1, 3, 4, 6 or 7 in a base station.
  • An embodiment of the present disclosure further provides a computer-readable program, wherein when the program is executed in terminal equipment, the program enables a computer to carry out the method for transforming carrier as described in embodiments 2, 5 or 8 in the terminal equipment.
  • An embodiment of the present disclosure further provides a storage medium in which a computer-readable program is stored, wherein the computer-readable program enables a computer to carry out the method for transforming carrier as described in embodiments 2, 5 or 8 in terminal equipment.
  • the above apparatuses and methods of the present disclosure may be implemented by hardware, or by hardware in combination with software.
  • the present disclosure relates to such a computer-readable program that when the program is executed by a logic device, the logic device is enabled to carry out the apparatus or components as described above, or to carry out the methods or steps as described above.
  • the present disclosure also relates to a storage medium for storing the above program, such as a hard disk, a floppy disk, a CD, a DVD, and a flash memory, etc.

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